//#include <sqlpp11/mysql/mysql.h>
//#include <sqlpp11/mysql/connection.h>
//#include <sqlpp11/sqlpp11.h>
//int main() {
//    auto config = std::make_shared<sqlpp::mysql::connection_config>();
//    config->host = "127.0.0.1";
//    config->user = "root";
//    config->password = "zxl_19831313#@@Qqqq";
//    config->database = "qkd";
//    config->debug = true;
//
//   // namespace sql = sqlpp::mysql;
//    sqlpp::normal_connection<connection_base> db;
//    try
//    {
//        db.connectUsing(config);
//    }
//    catch (const sqlpp::exception&)
//    {
//        std::cerr << "For testing, you'll need to create a database called '" << config->database
//            << "', accessible by user '" << config->user << "' without a password." << std::endl;
//        throw;
//    }
//   
//	return 0;
//}